Jacob schinneller



(No Model.) ,4

J. SGHINNELLBR.

GAS CONVEYING (FUND HIT. N0. 388,55Q Patented Mar. 23,1886.

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ATENT OFFICE,

JACOB SCHINNELBER, or PI TTSBUBG, PnnnsYLvAniA.

GAS-CONVEYING coNoulT.

SPECIPIQATIO farming part of Letters Patent No. 338,559, dated March 23. 1886.

Application filed Xovemher 9.1, 1885 To all whom it may concern.-

Be it known that I, JACOB SoHInxnLLnR, a citizen ofithe United States, residing at Pitts burg, in thecounty of Allegheny'and State of Pennsylvania, have invented certain new and useful Improvements in Gas-Conduits; and I do hereby declare the following to be a full, clear, and exact description of the invention, reference beinghad to the accompanying d raw ings, which form part'of this specification.

This invention has relation to the packing and sealing-of joints and joint couplings in gas and other conduits, and has for its object the provision of a novel expedient whereby lead or other suitable packing metal in the form of rings or annular plates may be applied to the annular jointspaces of. the neck and socket couplings, and afterward calked and expanded, so as to produce' a perfectly close and flexible joint,which will adapt itself to all movements of the parts,from whatsoever cause produced,

My invention is particularly applicable to pipes and conduits for the conveyance of not ural gas, wherein exceptional tightness of the joints is required, and wherein it is necessary to provide .for' disturbances or move- In the employment of lead as'a filling material for the bowls or sockets it has been customary to pourin molten lead, and to afterward calk the same around the mouth of the bowl or socket; but with such method of fillingit has been found impracticable to entirely fill the space, for the reason that the lead con-' tracts from the bowl or socket,'leaving an open seam between the lead and, the inner surface of the bowl, which is afterward only partly compensated for by calking the lead at the mouth of the bowl. The result is,therefore, an imperfect joint, and one that if even calked gastight at first will not remain so permanently, but will leave gaps and leaks after any expansion, contraction, or sag of the coupled pipes. This result follows on account of the inelastic quality of the lead, which, after being once disturbed, cannot resume its'normal position, but must be recalkcd after every movement of the parts. Again, after the lead liar-dens, its surface is pitted,even where it impinges upon 01: comes in cont-act with theiron, and for this Serial No, lSli,5-l5. (X0 model.)

as well as for other reasons is a defective seal orjoint-filling.

My invention contemplates, as a substitute for t-helead seal applied tothe jointin a molten condition, sheet-lead or other suitable material bent into the form of a ring, and having its walls folded upon each other, so as to pro vide between them a narrow annular chamber entirely closed at one end by the fold or bend of the sheet from which the ring is made. This double ring is fashioned so as to fit into the space between the bowl or sleeve of one pipe and the neck of the other, and thus constitute a gasket which will entirely and absolutely close the scam or joint formed at the junction of the bowl at its base and the end of the. section of pipe inserted therein. The space between the double walls of the ring is calked or filled with oaknm or other suitable filling material possessing the reqnisite elasticity. In calking in such filling the walls of the ring are expanded so as to hug closely to the surface of the pipe and the innor surface of the bowl, thus sealing the in tervening'scams, while providing for and allowing a movement of the parts without disturbing the utility or efiiciency of the seal. The outer edge of the walls of the lead ring may be finally coated or calked, so as to exclude moisture.

A joint sealed according to my invention has the advantage of being comparatively in expensive, as it requires less lead and less la bor than when the lead is poured in a molten condition.

The doublewalled rings are ready for application, and may be entirely finished before put in place around the pipe.

My invention accordingly consists, first, and broadly, in the combination, with two adjacent sections of pipe or conduit and a coup ling bowl, socket, or sleeve, of a joint'filling formed by a ring or belt of lead or other material having double-folded walls; secondly, in the combination, with two sections of pipe or conduit and acoupling bowl, socket, orslecve, of a double-walled folded ring or belt located between the bowl or sleeve and the included pipe, and a filling of oaknm or other suitable elastic material packed into the space between the walls of the ring.

' Referring to th e accompanying drawings, The object of the elastiofilling between the Figure 1 is a longitudinal sectional view of walls of the ring is to provide for any movetwo sections of coupled-pipe to which my imment of the coupled parts. This filling will;

proved seal is applied, and Fig. 2 a. sectional yield and maintain a tight joint in. all pooi view of the double ring before insertion. Fig. ,tions of the sections. Where lead is used, as

3 is a sectional view of a modification.v in the ordinary joint, its inelastieity prevent! I A. A designate the'two sections of pipe or it from adapting itself .to all the movementelos conduit, on'one of'whioh is shown the bowl or I of the pipe, occasioned by I "ng or other 1? socket l3, adoptedfor the reception'of the end wise; hence everymovement o the pipe hasor the neck B of the adjecent'section. ,a tendency to break the seal and open the instead of foriningthe'sections with bowls, joint. Thisiis obviated,,wheretheringlaw i. may einployseparate collars'or'sleeves, as by the elastic-materialc'alked in between'the c my improved sealing-ring may beinsertedbe- .walls thereof. ff f tween the collar end the'surface of the in- If, desired, the sections may-be provided cave surfaces may into t eluded pipe, and are r throughout.

eluded ttibc,as between the bowl and the tube. For the-purposes of my invention the usiialhead on the end of the section A (as formed on cost pipe) is omitted, and the inner-surface of the bowl is 'ireferably made with a slight concavity, as s own at b, to [afford an et'lequate purchase to the outer wall 'of thepacltingring, The circle including the conbe struck o'r, described from the center of the pipe, in which case the joint will approximate a ball-and-socket coupling;

(3 designates the ring, which is inade of a sheet oi lead of suit-able thicknessand area,

saidbowl, and including, hetwedn'ithem on i elastic filling o'r packiiig,'snbstantiolly no" with flanges or collaisagainst which the edge of the inner wall of'the ring-will abut. T Having'described my'inventionmhntlolaim 75 f as new, and desire to secureby Letteremnt, I I a .1. In a conduit for the conveyance of I or fluids, the'comlilnation, with the," on I A, provided with the bowl B,'a'nd the section l A, havingaspigot'endfitting'within eeidhowl andseparated the'refrom;by anannnlar space, of the joint seal or packing ooneiettngofe ring or beltot lead having double wells,-

' said walls beingot' substantially equal length -85 vand extending i'romthe month ton-lie baeevof:

folded over at or about itsmiddle part by i shown and described;

stamping; or it may be cast in a mold, so as to be of a, U shape in cross-section. In applying this ringto the pipes it iszfirst. slipped I j he bowl and the spigot end of the-pipe I 2. In aconduitzfo'r' the conveyance ofglljo then inserted into the ring, the bend a of the or" fluids, the combination, with the spigot fring seating itself at the baseofthe, bowl, sectionA andthe double-folded ring or peek and the outer edges -of the ringwalls slightly ing 0, of the sectionxAf, having the bowl B,

projectingbcyond the mouth of'the bowL whose interiorsurfaceis made conmve onthe 7 Q Oakiitn or other suitable material is then are of a circle described fromi-heoenter-ol '5 the bowl, whereby'said bowl and packing form I a ,bel l-and-socket'sjoint, substantially an do I scribed.

packed tightly into the. space between the ringwells, as shown at .d, and the walls ex pended throughout their entireidepth,.the r walls adapting themselves to the curvature or 3.,In a conduit for the'conveyanoeo! so 1 other surface conformation of the bowl and or'fluids, the'combinntion', withthe eon 1'00,

tube, and bothwalls closely hugging the sur: sections, of a coupling sleeveor bowl and faces against which theyimpinge, and entirely double-walled .packingring, said, sleeve on closing and sealing the space from; the mouth bowl having a cavity oft-increased. or enlarged,

of the bowl vto its base. i I II a I diameter "between its mouth and 1bose,iond- In the ordinary method of walking it'is i'm- I said double' walledming being expanded to 1 2 v ractic-able, if not impossible, to calk the lead opnforni to the shape ofv said covity, enhetlilthe-full depth of the bowl; tially' asde'scribed'. It will be seen that the double-walled ring I ln-testimony that I claim the foregoing I I L produces a close and permanent seal throughhave hereunto set my hand this 18th day-of out the depth of the bowl or sleeve, andthat Sovcmber ,1 885. v .v

no lcakago'ean possibly, take'plnce-"et 'anyf;

point. Unlike the seal produced by pouring in molten 'lead, the ring-walls cover thesurface of the entire cavity of the bowl and in}-- "Witneesee:

solid and homogeneous LOUIS MQESER, I

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